Pan — Not able to register in the 'income tax efiling'

Hi,

I'm not able to register in the 'income tax efiling'. While registering, the form asks for my 'first name' and 'last name'. But when I fill with the correct details [tried all possible combinations], its showing error message like 'Error : Name entered is not as per PAN. Please retry.'

Is there any way to verify my details as per the PAN records?

Thanks,
Rohini S